
| APR | MAY | JUN | JUL | AUG | SEP | ||||||||||||||||||||||
| Week no. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | |
| Site | Ind | ||||||||||||||||||||||||||
| Small/Essex Skipper | 162 | . | . | . | . | . | . | . | . | 2 | 6 | 10 | 15 | 49 | 16 | 9 | . | . | . | . | |||||||
| Large Skipper | 181 | . | . | . | . | 1 | 4 | 1 | 27 | 49 | 18 | 28 | 6 | . | . | . | . | . | . | . | |||||||
| Dingy Skipper | 179 | . | 3 | 29 | 20 | 20 | 29 | . | 1 | 4 | . | . | . | . | . | . | . | . | . | . | |||||||
| Clouded Yellow | 5 | . | . | . | . | . | . | . | . | . | . | . | . | . | 1 | 4 | . | . | . | . | |||||||
| Brimstone | 216 | 3 | 20 | 9 | 17 | 3 | 18 | . | 6 | . | 7 | 9 | 8 | 3 | 16 | 6 | 3 | 1 | 6 | 3 | |||||||
| Large White | 117 | . | 2 | 5 | 10 | 3 | 3 | . | 1 | . | 3 | 8 | 16 | 15 | 7 | 2 | 2 | 1 | 1 | . | |||||||
| Small White | 40 | . | 1 | 3 | 4 | 3 | 1 | . | . | . | . | 1 | . | 8 | 2 | 3 | . | 1 | . | . | |||||||
| Green-veined White | 133 | . | 3 | 6 | 7 | 5 | 5 | . | . | . | 3 | 3 | 8 | 22 | 20 | 8 | 3 | 3 | 2 | 1 | |||||||
| Orange Tip | 96 | . | 23 | 7 | 13 | 5 | 4 | . | . | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Green Hairstreak | 44 | . | 6 | 4 | 10 | 2 | 5 | . | 1 | . | . | . | . | . | . | . | . | . | . | . | |||||||
| Small Copper | 23 | . | . | . | . | 2 | . | . | . | . | . | . | . | 1 | 2 | 2 | 1 | 3 | 2 | . | |||||||
| Brown Argus | 110 | . | . | . | 2 | . | 2 | . | . | 4 | . | . | . | 1 | 12 | 33 | 18 | 11 | 8 | 1 | |||||||
| Common Blue | 544 | . | . | . | 11 | 50 | 48 | 2 | 16 | 16 | 1 | 2 | 1 | 3 | 100 | 78 | 44 | 20 | 13 | . | |||||||
| Chalk-hill Blue | 187 | . | . | . | . | . | . | . | . | . | . | 8 | 31 | 45 | 28 | 14 | 8 | 2 | 3 | . | |||||||
| Adonis Blue | 3 | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | . | 2 | . | . | |||||||
| Holly Blue | 23 | . | 5 | 3 | 4 | . | 1 | . | . | . | . | . | 1 | . | 2 | 1 | . | . | . | . | |||||||
| Red Admiral | 17 | . | . | . | 2 | . | . | . | . | 1 | 2 | 1 | 1 | 1 | 1 | . | . | . | 1 | 3 | |||||||
| Painted Lady | 3 | . | . | . | . | . | . | . | . | 1 | . | . | . | . | . | 2 | . | . | . | . | |||||||
| Small Tortoiseshell | 116 | 5 | 8 | 2 | . | . | . | 1 | 1 | 1 | 9 | 9 | 3 | 5 | 6 | 4 | 8 | 12 | 7 | 1 | |||||||
| Peacock | 152 | 32 | 18 | 13 | 4 | 2 | 1 | . | . | 1 | . | . | . | 1 | 16 | . | 2 | . | . | . | |||||||
| Comma | 64 | 12 | 2 | . | . | . | . | . | . | . | 3 | 8 | 6 | 9 | . | . | . | 13 | 14 | 10 | |||||||
| Speckled Wood | 295 | . | 6 | . | 3 | 8 | 19 | 4 | 8 | 6 | 4 | 3 | 3 | . | 23 | 33 | 35 | 37 | 20 | 22 | |||||||
| Marbled White | 549 | . | . | . | . | . | . | . | 2 | 10 | 129 | 125 | 118 | 70 | 3 | . | . | . | . | . | |||||||
| Gatekeeper / Hedge Brown | 140 | . | . | . | . | . | . | . | . | . | 1 | 6 | 2 | 46 | 19 | 13 | 1 | . | . | . | |||||||
| Meadow Brown | 730 | . | . | . | . | . | . | 2 | 9 | 16 | 43 | 62 | 81 | 105 | 114 | 64 | 45 | 20 | 15 | 5 | |||||||
| Small Heath | 69 | . | . | . | 4 | 3 | 5 | . | 5 | 7 | 3 | 5 | 6 | 2 | 6 | 3 | 2 | 1 | . | . | |||||||
| Ringlet | 429 | . | . | . | . | . | . | . | 9 | 11 | 110 | 108 | 90 | 30 | . | . | . | . | . | . | |||||||